[bes-chee-al-i-tee, bees-]
noun, plural bestialities.
brutish or beastly character or behavior; beastliness.
indulgence in beastlike appetites, instincts, impulses, etc.
an instance of bestial character or behavior.
sexual relations between a person and an animal; sodomy.

1350–1400; Middle English bestial(i)te (< Anglo-French, Middle French) < Medieval Latin bēstiālitās. See bestial, -ity Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
bestiality (ˌbɛstɪˈælɪtɪ)
n , pl -ties
1.  bestial behaviour, character, or action
2.  sexual activity between a person and an animal

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

late 14c., "the nature of beasts," from bestial (q.v.). Meaning "indulgence in beastly instincts" is from 1650s; sense of "sexual activity with a beast" is from 1611 (KJV).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

bestiality bes·ti·al·i·ty (běs'chē-āl'ĭ-tē, bēs'-)

  1. The quality or condition of being an animal or like an animal.

  2. Conduct or an action marked by depravity or brutality.

  3. Sexual relations between a human and an animal.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica


sexual relations between a human being and an animal. Although the practice is illegal in most countries, occasional zoophilic encounters are fairly common, especially in rural areas, where 17 percent of U.S. males in the Kinsey report of 1948 acknowledged sexual experience with animals at least once. Sexual contacts between women and animals occur less frequently.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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